SLOU536 June   2020

 

  1.   DRV8428EVM GUI User's Guide
    1.     Trademarks
    2. 1 Overview
    3. 2 Hardware and Software Setup
    4. 3 GUI Application
      1. 3.1 Installation
      2. 3.2 Getting Started with DRV8428 EVM GUI
      3. 3.3 Use the DRV8428 EVM GUI
        1. 3.3.1 Stepper Control Page
          1. 3.3.1.1 Stepper Control Modes
            1. 3.3.1.1.1 Speed Mode
            2. 3.3.1.1.2 Step Mode
        2. 3.3.2 Decay Mode and TOFF setting
        3. 3.3.3 Fault Monitoring
        4. 3.3.4 Use the Side-Bar Menu
        5. 3.3.5 Menu Bar Options
          1. 3.3.5.1 File Menu
          2. 3.3.5.2 Options Menu
          3. 3.3.5.3 Tools Menu
          4. 3.3.5.4 Help Menu

3.3.2 Decay Mode and TOFF setting

Decay refers to how the driving currents recirculate in H-bridge FETs during the Toff time. The user configures the decay mode and TOFF using the GUI

DRV8428EVM_decay_toff.pngFigure 9. DRV8428 EVM GUI (Decay Mode and TOFF setting)

Decay mode and appropriate TOFF values can be configured in this section. The configurations can be visualized in the graph shown. For more information about the different decay modes and TOFF setting, refer to the DRV8428 Stepper Motor Driver datasheet.